String类 

 1 package string;
 2 
 3 public class StringExam01 {
 4     public static void main(String[] args){
 5         String a="abc";
 6         String b="abc";
 7         System.out.println(a.equals(b));//比较内容
 8         System.out.println(a==b);//比较地址
 9 
10         System.out.println("*********");
11 
12         String c=new String("abc");
13         String d=new String("abc");
14         System.out.println(c.equals(d));
15         System.out.println(c==d);
16 
17         System.out.println("********");
18 
19         String e="abc";
20         String f=new String("abc");
21         System.out.println(e.equals(f));
22         System.out.println(e==f);
23         System.out.println(e==f.intern());
24         System.out.println(f==f.intern());
25 
26     }
27 }

 

posted @ 2020-06-11 10:24  --学无止境--  阅读(176)  评论(0)    收藏  举报